Hydrophobic Quaternized Poly(fluorene) Ionomers for Emerging Fuel Cells
Source abstract
Abstract
Quaternized polymers as electrode ionomeric binders enable fuel cell operation under high-pH or anhydrous conditions. Herein we report quaternized poly(fluorene) ionomers with controlled hydrophobicity (contact angle of electrodes with the ionomers 109–164°) by changing the length of tethered fluoroalkyl chains. The anion-exchange membrane fuel cell employing the hydrophobic ionomer exhibits improved durability (voltage loss 0.41 mV h–1) through better water management. The high-temperature proton-exchange-membrane fuel cell using the ionomer shows superior H2/air performance (1.7 A cm–2 at 0.4 V). The finding in this study highlights the benefits of hydrophobic ionomers for emerging fuel cell applications.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fuel Cells and Related Materials · Electrocatalysts for Energy Conversion · Advanced battery technologies research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Materials Synthesis and Integrated Devices Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
Nanoscale Sciences Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
Toyota Research Institute of North America, Ann Arbor, Michigan 48105, United States
Funding
Advanced Research Projects Agency - Energy
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